JP2023094543A - リペア構造を有する電界発光表示装置 - Google Patents
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- 229910052581 Si3N4 Inorganic materials 0.000 description 1
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- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
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- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/121—Active-matrix OLED [AMOLED] displays characterised by the geometry or disposition of pixel elements
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- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body
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- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body
- H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
- H01L27/124—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs with a particular composition, shape or layout of the wiring layers specially adapted to the circuit arrangement, e.g. scanning lines in LCD pixel circuits
- H01L27/1244—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs with a particular composition, shape or layout of the wiring layers specially adapted to the circuit arrangement, e.g. scanning lines in LCD pixel circuits for preventing breakage, peeling or short circuiting
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- H10K59/12—Active-matrix OLED [AMOLED] displays
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- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
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Abstract
Description
Claims (18)
- 基板、
前記基板上にあるバッファ層、
前記基板の画素に配置され、ソース電極、ドレイン電極、半導体層、およびゲート絶縁膜を挟んで前記半導体層と重畳するゲート電極を具備した薄膜トランジスタ、
前記画素に配置され、前記ドレイン電極に連結した発光ダイオード、および
前記発光ダイオードと重畳して配置されたリペア素子を含み、
前記リペア素子が、
前記基板と前記バッファ層の間に配置され、前記基板上に配置された第1金属層と、前記第1金属層上に配置された第2金属層とを含むリペア配線、および
前記リペア配線を覆う前記バッファ層及びゲート絶縁膜上に配置され、前記リペア配線と重畳するリペア電極を具備し、
前記リペア電極は、前記ドレイン電極と電気的に連結する電界発光表示装置。 - 前記画素に不良が発生した場合、
前記半導体層が除去され断線し、
前記リペア配線と重畳する前記リペア電極が、前記バッファ層及び前記ゲート絶縁膜を貫通して前記リペア配線と物理的に連結した、請求項1に記載の電界発光表示装置。 - 前記リペア配線が、溶融して前記リペア電極と連結した、請求項2に記載の電界発光表示装置。
- 前記発光素子が、
前記薄膜トランジスタの前記ドレイン電極と連結し、不透明金属物質を含むアノード電極、
前記アノード電極上に積層された発光層、
前記発光層上に積層され、透明導電物質を含むカソード電極を含み、
前記発光層で発生した光は、前記カソード電極方向に出光する、請求項1に記載の電界発光表示装置。 - 前記発光素子において、前記リペア電極と前記薄膜トランジスタの前記ドレイン電極とが重畳する部分においても、前記発光層で発生した光が、前記カソード電極方向に出光する、請求項4に記載の電界発光表示装置。
- 前記リペア配線の前記第1金属層が、
第1幅を有し、
前記第2金属層は、前記第1幅より大きい第2幅を有し、
前記リペア配線は、前記バッファ層と前記ゲート絶縁膜で覆われた、請求項1に記載の電界発光表示装置。 - 前記バッファ層及び前記ゲート絶縁膜が、前記第1金属層と前記第2金属層の端に沿って他の部分よりも薄い厚さに積層されたシーム(seam)領域を形成し、
前記リペア電極は、前記シーム領域を埋めながら前記ゲート絶縁膜上で前記リペア配線の一部と重畳するように配置された、請求項6に記載の電界発光表示装置。 - 前記リペア配線の前記第2金属層が、溶融して、前記シーム領域を貫通して前記リペア電極と連結する、請求項6に記載の電界発光表示装置。
- 前記リペア配線が、
前記リペア電極と重畳する端部に形成された前記リペア配線を貫通する開放ホールをさらに含む、請求項1に記載の電界発光表示装置。 - 基板上に配置された第1画素および第2画素、
前記第1画素に配置された第1スイッチング薄膜トランジスタ、前記第1スイッチング薄膜トランジスタに連結した第1駆動薄膜トランジスタ、および前記第1駆動薄膜トランジスタに連結した第1発光素子、
前記第2画素に配置された第2スイッチング薄膜トランジスタ、前記第2スイッチング薄膜トランジスタに連結した第2駆動薄膜トランジスタ、および前記第2駆動薄膜トランジスタに連結した第2発光素子、並びに
前記第1発光素子及び前記第2発光素子と重畳するリペア素子を具備し、
前記リペア素子が、
前記第1画素から前記第2画素に延長され、逆テーパ形状を有するリペア配線、
前記第1駆動薄膜トランジスタの駆動ドレイン電極と連結し、前記第1スイッチング薄膜トランジスタのゲート電極と同じ物質で同じ層に配置され、前記リペア配線の第1端部と重畳する第1リペア電極、および
前記第2駆動薄膜トランジスタの駆動ドレイン電極と連結し、前記第2スイッチング薄膜トランジスタのゲート電極と同じ物質で同じ層に配置され、前記リペア配線の第2端部と重畳する第2リペア電極を具備し、
前記リペア配線と前記第1リペア電極および前記第2リペア電極の間には、バッファ層およびゲート絶縁膜が積層した、電界発光表示装置。 - 前記第1画素が、正常画素であり、前記第2画素は、不良画素である場合、
前記第2スイッチング薄膜トランジスタのスイッチング半導体層の一部が除去されて断線し、
前記第1リペア電極と前記リペア配線の前記第1端部、および前記第2リペア電極と前記リペア配線の前記第2端部とが互いに連結した、請求項10に記載の電界発光表示装置。 - 前記リペア配線の前記第1端部が、溶融して前記バッファ層及び前記ゲート絶縁膜を貫通して前記第1リペア電極と連結し、
前記リペア配線の前記第2端部は、溶融して前記バッファ層及び前記ゲート絶縁膜を貫通して前記第2リペア電極と連結した、請求項11に記載の電界発光表示装置。 - 前記第1及び前記第2発光素子のそれぞれが、
前記駆動薄膜トランジスタと連結し、不透明金属物質を含むアノード電極、
前記アノード電極上に積層された発光層、及び
前記発光層上に積層され、透明導電物質を含むカソード電極を含み、
前記発光層で発生した光は、前記カソード電極方向に出光する、請求項10に記載の電界発光表示装置。 - 前記第1発光素子において、前記第1リペア電極と前記リペア配線の前記第1端部とが重畳する部分においても、前記発光層で発生した光が前記カソード電極方向に出光し、
前記第2発光素子において、前記第2リペア電極と前記リペア配線の前記第2端部とが重畳する部分においても、前記発光層で発生した光が前記カソード電極方向に出光する、請求項13に記載の電界発光表示装置。 - 前記リペア配線が、
前記基板上で第1幅を有して形成された第1金属層、および
前記第1金属層上に前記第1幅より大きい第2幅を有して積層された第2金属層を含み、
前記リペア配線は、前記バッファ層と前記ゲート絶縁膜で覆われた、請求項10に記載の電界発光表示装置。 - 前記バッファ層及び前記ゲート絶縁膜が、前記第1金属層と前記第2金属層の端に沿って他の部分よりも薄い厚さに積層されたシーム領域を形成し、
前記第1リペア電極及び前記第2リペア電極は、前記シーム領域を埋めながら前記ゲート絶縁膜上に前記リペア配線の一部と重畳するように配置された、請求項15に記載の電界発光表示装置。 - 前記リペア配線の前記第2金属層が、溶融して、前記シーム領域を貫通して前記第1リペア電極及び前記第2リペア電極と連結する、請求項15に記載の電界発光表示装置。
- 前記リペア配線が、
前記第1リペア電極と重畳する前記第1端部に前記リペア配線を貫通する第1開放ホール、および
前記第2リペア電極と重畳する前記第2端部に前記リペア配線を貫通する第2開放ホールをさらに含む、請求項10に記載の電界発光表示装置。
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KR10-2021-0186109 | 2021-12-23 | ||
KR1020210186109A KR20230096533A (ko) | 2021-12-23 | 2021-12-23 | 리페어 구조를 갖는 전계 발광 표시장치 |
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JP5072227B2 (ja) | 2005-01-31 | 2012-11-14 | 株式会社半導体エネルギー研究所 | 表示装置及び電子機器 |
JP2007121424A (ja) | 2005-10-25 | 2007-05-17 | Toshiba Matsushita Display Technology Co Ltd | アクティブマトリクス型表示装置およびそのリペア方法 |
KR102308620B1 (ko) | 2014-11-27 | 2021-10-05 | 삼성디스플레이 주식회사 | 유기 발광 표시 장치 |
KR102566630B1 (ko) | 2015-12-30 | 2023-08-16 | 엘지디스플레이 주식회사 | 유기발광표시장치 |
CN207134356U (zh) | 2017-09-04 | 2018-03-23 | 京东方科技集团股份有限公司 | 一种阵列基板及显示装置 |
KR102482990B1 (ko) | 2017-12-27 | 2022-12-29 | 엘지디스플레이 주식회사 | 상부 발광형 유기발광 다이오드 표시장치 |
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US11765948B2 (en) | 2019-12-31 | 2023-09-19 | Lg Display Co., Ltd. | Display device including a repair pattern to repair a defective pixel and method of repairing same |
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JP7446383B2 (ja) | 2024-03-08 |
CN116367607A (zh) | 2023-06-30 |
TW202327079A (zh) | 2023-07-01 |
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